Title |
Host response to cuckoo song is predicted by the future risk of brood parasitism
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Published in |
Frontiers in Zoology, May 2013
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DOI | 10.1186/1742-9994-10-30 |
Pubmed ID | |
Authors |
Sonia Kleindorfer, Christine Evans, Diane Colombelli-Négrel, Jeremy Robertson, Matteo Griggio, Herbert Hoi |
Abstract |
Risk assessment occurs over different temporal and spatial scales and is selected for when individuals show an adaptive response to a threat. Here, we test if birds respond to the threat of brood parasitism using the acoustical cues of brood parasites in the absence of visual stimuli. We broadcast the playback of song of three brood parasites (Chalcites cuckoo species) and a sympatric non-parasite (striated thornbill, Acanthiza lineata) in the territories of superb fairy-wrens (Malurus cyaneus) during the peak breeding period and opportunistic breeding period. The three cuckoo species differ in brood parasite prevalence and the probability of detection by the host, which we used to rank the risk of parasitism (high risk, moderate risk, low risk). |
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